import pytest
import requests
import json
from unittest.mock import patch, MagicMock
import time
import random

# 配置信息
API_URL = "https://cvm.tencentcloudapi.com/"
REGION = "ap-guangzhou"
SECRET_ID = "your-secret-id"
SECRET_KEY = "your-secret-key"


def generate_signature(params, SECRET_KEY):
    """生成签名（模拟实现）"""
    return "mock-signature"


def send_request(action, params=None):
    """发送API请求（模拟实现）"""
    if params is None:
        params = {}
    common_params = {
        "Action": action,
        "Version": "2017-03-12",
        "Region": REGION,
        "SecretId": SECRET_ID,
        "Timestamp": int(time.time()),
        "Nonce": random.randint(1, 1000000),
        "SignatureMethod": "HmacSHA256"
    }
    all_params = {**common_params, **params}
    all_params["Signature"] = generate_signature(all_params, SECRET_KEY)

    response = requests.post(API_URL, data=all_params)
    return response.json()


class TestDescribeScheduledTasks:
    @patch('requests.post')
    def test_success_with_task_id(self, mock_post):
        """测试成功通过任务ID查询定时任务"""
        mock_response = MagicMock()
        mock_response.json.return_value = {
            "Response": {
                "TotalCount": 1,
                "ScheduledTaskSet": [
                    {
                        "ScheduledTaskId": "st-123456",
                        "ScheduledTaskName": "TestTask",
                        "ScheduledTaskAction": "StartInstances",
                        "ScheduledTaskState": "ENABLED",
                        "MaxRetryCount": 3,
                        "RetryInterval": 60
                    }
                ],
                "RequestId": "1234567890"
            }
        }
        mock_post.return_value = mock_response

        params = {"ScheduledTaskIds": ["st-123456"]}
        result = send_request("DescribeScheduledTasks", params)

        assert "Response" in result
        assert "ScheduledTaskSet" in result["Response"]
        assert len(result["Response"]["ScheduledTaskSet"]) > 0

    @patch('requests.post')
    def test_success_with_filters(self, mock_post):
        """测试成功通过过滤条件查询定时任务"""
        mock_response = MagicMock()
        mock_response.json.return_value = {
            "Response": {
                "TotalCount": 2,
                "ScheduledTaskSet": [
                    {
                        "ScheduledTaskId": "st-123456",
                        "ScheduledTaskName": "BackupTask",
                        "ScheduledTaskAction": "StopInstances",
                        "ScheduledTaskState": "ENABLED"
                    },
                    {
                        "ScheduledTaskId": "st-789012",
                        "ScheduledTaskName": "MonitorTask",
                        "ScheduledTaskAction": "StartInstances",
                        "ScheduledTaskState": "DISABLED"
                    }
                ],
                "RequestId": "1234567890"
            }
        }
        mock_post.return_value = mock_response

        params = {
            "Filters": [
                {
                    "Name": "scheduled-task-state",
                    "Values": ["ENABLED", "DISABLED"]
                }
            ]
        }
        result = send_request("DescribeScheduledTasks", params)

        assert "Response" in result
        assert "ScheduledTaskSet" in result["Response"]
        assert len(result["Response"]["ScheduledTaskSet"]) > 0

    @patch('requests.post')
    def test_internal_error(self, mock_post):
        """测试内部错误"""
        mock_response = MagicMock()
        mock_response.json.return_value = {
            "Response": {
                "Error": {
                    "Code": "InternalError",
                    "Message": "操作内部错误"
                },
                "RequestId": "1234567890"
            }
        }
        mock_post.return_value = mock_response

        result = send_request("DescribeScheduledTasks")
        assert result["Response"]["Error"]["Code"] == "InternalError"

    @patch('requests.post')
    def test_invalid_task_id(self, mock_post):
        """测试无效任务ID格式"""
        mock_response = MagicMock()
        mock_response.json.return_value = {
            "Response": {
                "Error": {
                    "Code": "InvalidParameterValue.ScheduledTaskIdMalformed",
                    "Message": "定时任务ID格式不正确"
                },
                "RequestId": "1234567890"
            }
        }
        mock_post.return_value = mock_response

        params = {"ScheduledTaskIds": ["invalid-task-id"]}
        result = send_request("DescribeScheduledTasks", params)
        assert result["Response"]["Error"]["Code"] == "InvalidParameterValue.ScheduledTaskIdMalformed"

    @patch('requests.post')
    def test_invalid_filter_name(self, mock_post):
        """测试无效过滤条件名称"""
        mock_response = MagicMock()
        mock_response.json.return_value = {
            "Response": {
                "Error": {
                    "Code": "InvalidParameterValue.FilterName",
                    "Message": "过滤条件名称无效"
                },
                "RequestId": "1234567890"
            }
        }
        mock_post.return_value = mock_response

        params = {
            "Filters": [
                {
                    "Name": "invalid-filter-name",
                    "Values": ["test"]
                }
            ]
        }
        result = send_request("DescribeScheduledTasks", params)
        assert result["Response"]["Error"]["Code"] == "InvalidParameterValue.FilterName"

    @patch('requests.post')
    def test_invalid_filter_value(self, mock_post):
        """测试无效过滤条件值"""
        mock_response = MagicMock()
        mock_response.json.return_value = {
            "Response": {
                "Error": {
                    "Code": "InvalidParameterValue.FilterValue",
                    "Message": "过滤条件值无效"
                },
                "RequestId": "1234567890"
            }
        }
        mock_post.return_value = mock_response

        params = {
            "Filters": [
                {
                    "Name": "scheduled-task-state",
                    "Values": ["INVALID_STATE"]
                }
            ]
        }
        result = send_request("DescribeScheduledTasks", params)
        assert result["Response"]["Error"]["Code"] == "InvalidParameterValue.FilterValue"

    @patch('requests.post')
    def test_invalid_offset(self, mock_post):
        """测试无效偏移量"""
        mock_response = MagicMock()
        mock_response.json.return_value = {
            "Response": {
                "Error": {
                    "Code": "InvalidParameterValue.Offset",
                    "Message": "偏移量无效"
                },
                "RequestId": "1234567890"
            }
        }
        mock_post.return_value = mock_response

        params = {"Offset": -1}
        result = send_request("DescribeScheduledTasks", params)
        assert result["Response"]["Error"]["Code"] == "InvalidParameterValue.Offset"

    @patch('requests.post')
    def test_invalid_limit(self, mock_post):
        """测试无效每页数量"""
        mock_response = MagicMock()
        mock_response.json.return_value = {
            "Response": {
                "Error": {
                    "Code": "InvalidParameterValue.Limit",
                    "Message": "每页数量无效"
                },
                "RequestId": "1234567890"
            }
        }
        mock_post.return_value = mock_response

        params = {"Limit": 0}
        result = send_request("DescribeScheduledTasks", params)
        assert result["Response"]["Error"]["Code"] == "InvalidParameterValue.Limit"

    @patch('requests.post')
    def test_task_not_found(self, mock_post):
        """测试任务不存在"""
        mock_response = MagicMock()
        mock_response.json.return_value = {
            "Response": {
                "Error": {
                    "Code": "InvalidScheduledTask.NotFound",
                    "Message": "指定的定时任务不存在"
                },
                "RequestId": "1234567890"
            }
        }
        mock_post.return_value = mock_response

        params = {"ScheduledTaskIds": ["st-not-exist"]}
        result = send_request("DescribeScheduledTasks", params)
        assert result["Response"]["Error"]["Code"] == "InvalidScheduledTask.NotFound"

    @patch('requests.post')
    def test_missing_required_param(self, mock_post):
        """测试缺少必需参数"""
        mock_response = MagicMock()
        mock_response.json.return_value = {
            "Response": {
                "Error": {
                    "Code": "MissingParameter",
                    "Message": "缺少必需的参数"
                },
                "RequestId": "1234567890"
            }
        }
        mock_post.return_value = mock_response

        # 注意：根据实际接口文档，可能没有真正的必需参数
        # 这里仅作为示例
        params = {"InvalidParam": "test"}
        result = send_request("DescribeScheduledTasks", params)
        assert result["Response"]["Error"]["Code"] == "MissingParameter"

    @patch('requests.post')
    def test_unauthorized_operation(self, mock_post):
        """测试未授权操作"""
        mock_response = MagicMock()
        mock_response.json.return_value = {
            "Response": {
                "Error": {
                    "Code": "UnauthorizedOperation",
                    "Message": "未授权的操作"
                },
                "RequestId": "1234567890"
            }
        }
        mock_post.return_value = mock_response

        result = send_request("DescribeScheduledTasks")
        assert result["Response"]["Error"]["Code"] == "UnauthorizedOperation"


# 启动测试函数
def run_tests():
    pytest.main([__file__, "-v", "-s"])


if __name__ == "__main__":
    run_tests()    